body {
  font-family: Arial;
  text-align: center;
  background: lightgray;
}

input, select {
  padding: 10px;
  margin: 5px;
}

button {
  padding: 10px;
  background: green;
  color: white;
  border: none;
  cursor: pointer;
}

button:hover {
  background: darkgreen;
}

ul {
  list-style: none;
  padding: 0;
}

li {
  background: white;
  margin: 10px;
  padding: 10px;
  border-radius: 5px;
}

.admin {
  border-left: 5px solid blue;
}

.member {
  border-left: 5px solid orange;
}